Room-Temperature Palladium(II)-Catalyzed Direct 2-Arylation of Indoles with Tetraarylstannanes
作者:Yuxia Liu、Dong Xue、Chao Wang、Linjuan Huang
DOI:10.1055/s-0040-1707196
日期:2020.10
A palladium(II)-catalyzed direct 2-arylation of indoles by tetraarylstannanes with oxygen (balloon) as the oxidant at room temperature has been developed. Various tetraarylstannanes can be employed as aryl sources for 2-arylation of indoles in up to 89% yield, providing a practical and efficient catalytic protocol for accessing 2-arylindoles.
已开发出钯 (II) 催化的四芳基锡烷与氧(气球)作为氧化剂在室温下直接对吲哚进行 2-芳基化反应。各种四芳基锡烷可用作吲哚 2-芳基化的芳基来源,产率高达 89%,为获得 2-芳基吲哚提供了实用且有效的催化方案。
Pd(OAc)<sub>2</sub>-Catalyzed Regioselective Arylation of Indoles with Arylsiloxane in Acidic Medium
作者:Zunjun Liang、Bangben Yao、Yuhong Zhang
DOI:10.1021/ol101147b
日期:2010.7.16
Mild conditions have been developed to achieve a Pd(OAc)(2)-catalyzed cross-coupling between indoles and arylsiloxanes in the presence of TBAF and Ag2O in acidic medium. Electron-deficient arylsiloxanes presented high efficiency in this system to give the arylated indoles in excellent yields.